Carbureter



J. SCHOLIZ. CARBURETER/ APPLICATION FILED AUG.1 I919.

Patented Feb. 1, 1921.

2 SHEETS-SHEET 1- Inventor John 8 aka ltz Patented Feb. 1, 1921.

2 SHEETS-SHEET 2.

J. SCHULTZ.

CARBURETER.

APPLICATION FILED AUG. I. I9I9.

UNITED STATES PATENT OFFICE.

JOHN SCHULTZ, 0F PHILADELPHIA, PENNSYLVANIA, ASSIGNOR 0F ONE-THIRD TO STANLEY A. BROZA, OF ORELAND, PENNSYLVANIA, AND ONE-THIRD T0 GUSTAVE W. SUNDAY, 01? PHILADELPHIA, PENNSYLVANIA.

CABBURETER.

Specification of Letters Patent.

Patented Feb. 1, 1921.

Application filed August 1, 1919. Serial No. 314,620.

To all whom it may concern:

Be it known that I, J OHN SCHOLTZ, a citi-' hose or the like to an illuminating gas pipe.

a Anotherobject is to so construct my 1mproved carbureterthat it can be quickly adjusted to vary the amount of air for mlxing with the gas and to make the same of com paratively few parts capable of belng quickly made, puttogether or taken apart.

These objects, and other advantageous ends which will be described hereinafter, I

attain in the following manner, reference being had to the accompanying drawings 1n which Figure lis an end elevation of a gas engine, such for example as the gas engine forming a part of my c0-pend1ng application for United States patent, and showing my improved carbureter attached thereto,

Fig. 2 is a fragmentary side elevation of Fig. 1,

Fig. 3 is an enlarged central vertlcal sec tion of my improved carbureter,

Fig. 4 is a transverse section taken on the line 4-4 ofFig. 3,

Fig. 5 is a fragmentary transverse section taken on the line 5-5 of Fig. 3,

. Fig. 6 is a transverse section taken on the line 6-6 of Fig. 3, l

Fig. 7 is a section of similar nature to Fig.

body portion 12 having a cylindrical vertical bore 13 and a screw threaded stem 14 having a passage 15 which communicates with the top of the chamber 16 provided by said bore i .A cylinder 17 has its upper end fitting within the bore 13 and secured thereto by a screw 18. The bottom portion of the cylinder 17 extends below the bottom 19 of the body portlon 12 andhas an annular flange 20 at its bottom. A collar 21 rotatably fits on the lower portion of the cylinder 17 and is interposed between the bottom 19 of the body portion 12 and the flange 20. Thus the collar 21 is free to rotate around the cylinder 17 but is prevented from moving longitudinally thereon. The collar 21 has perforations or holes 22 which are adapted to reglster with holes 23 in the cylinder 17,

as clearly shown in Figs. 3, 6 and 7. The

cylinder 17 provides an axial passage 23 which extends vertically and is flared adjacent its upper end to provide a valve seat '24, said valve seat having perforations 25 leading therefrom at an angle opposite to the flare of the seat 24. These perforations at their ends opposite the seat 21 communicate with or lead into an annular groove 26 as clearly shown 1n Flgs. 3 and 9. The body portion 12 has formed in said cylinder 17 a stem 27 extending laterally therefrom and this stem has an inlet passage 28 for the gas, said passage 28 registering with the annular groove 26 of the cylinder 17. The upper end of the stem 27 is notched, as shown at 29, to permit the attachment of a gashose 30 (see Fig. 1) in the usual manner of attaching gas hose to valve stems or the like. The stem 27 has a cut-off valve 31 rotatably mounted therein for admitting or cutting off gas to the annular groove 26 in the cylinder 17.. A valve 32 is positioned within-the chamber16and has a rod 33 connected thereto, said rod extending vertically through the axial passage 23* and being freely slidable through a hole 34: in the bottom of the cylinder 17 The lower end of the rod 33 is screw threaded and a ball 35 or other article which is larger than the hole 34 is screwed on the lower end of the rod 33. Outside of the cylinder 17, as clearly shown in Figs. 1, 2 and 3, the valve 32 is adapted to normally 'nest upon the seat 24: and cover the perforations 25. The. axial passage23' .is of larger diameter than the diameter of'the rod 33 so that there is a space around the rod 33 which communicates at all timeswith the holes 23.

During thefOPBIatlOIlOf the engine 10 a I 35, which serves as a limiting nut, determines-the amountof openin movement of the valve 32. After the suction has ceased,

the valve 32" will drop by gravity and cut off the gas and airsupply, due to the engagement of the valveupon the seat 24.

The amountof aircan be quickly and easilyvaried by. turning the collar 21, for example Fig. 6shows the. position of the collar 21, when theholes22 are in complete register with theholes23. Thus it is an easy matter to vary the amount of air admitted. so as to .secure the proper mixture of'the'air and gas.

A regulatingvalve 11 is included inth pipe 11 and this regulating valve has a lever 36 secured thereto, said lever having two arms37 and 38 projecting therefrom in opposite directions as clearly. shown in Fig. 1.v These arms are: respectively oonnected bychains 39. and 40 to two oppositely disp'osedarms 41. and 42; said arms being connected to. a handle 43. This handle is retatably connected to an .indicator44. The indicator 44' -is.adapted to traverse a dial 45, said dial. having graduations 46thereon. Thusby moving the handle 43, the regulating valve ll 'canbe operated to vary the amount of mixture entering the engine.

By fitting .thecylinder- 17 within the body portion 12 .and securing it with the screw 18, it is merely necessary to removethe screw 18in orderto permit the collar 21, cylinder 7 l71and valve v32 to be removed from the body portionfor cleaning or repair purposes.

.While-Ihave described my invention as takingralparticular form, it will beunderstood that the. various. parts of -my invention. may be? changed without departing 'from-the spiritthereof, and hence I do not limit myselfto the precise construction set forth, butconsider that I am at liberty to make such changes and alterationsas fairly c0me .within the scope of the appended claims; I

Having. thus described my invention, what ILclaiin as new anddesire to secure by Letters -Patent: is

1.- A. carbureter including a body portion Having abore extending, inwardly. from one endandstopping; short of theother end; a

'Fiilfiiden wantedt fitw thi l aidrrbereand below said valve seat, said cylinder having to said valve seat and communicating with said gas inlet passage, said cylinder having an inner passage leading from said valve seat to a position bclow said first end of the hollow body portion; a valve for engagement with said valve seat, said cylinder having holes extending laterally from said latter passage, saidcylinder having a flange spa-red below said first end of the body portion; and a collar rotatably surrounding said cylinder and interposed between said flange and said first end of the body portion, said collar having holes adapted to register with said holes in the cylinder for regulating the amount of air passing through said first passage of the cylinder, said body portionhaving an outlet passage communicating with said mixing chamber; substantially as described.

2. A carbureter including a body portion having a bore extending inwardly from one end and stopping short of the other end;

perforations leading a cylinder adapted to fit within said bore and having a valve seat spaced from the inner end of the bore to provide a mixing chamber, said body portion including an inlet gas passage communicating with said bore below said valve seat, said cylinder having perforations leading to said valve seat and communicating with said gas inlet passage, said cylinder having an inner passage leading from said valve seat to a position below said first end of the hollow body portion a valve for engagement with said valve seat, said cylinder having holes extending laterally from said latter passage, said cylinder having a flange spaced below said first end of the body portion; a collar rota-tably surrounding said cylinder and interposed between said flange and said first end of the body portion, said collar having holes adapted to register with said holes in the cylinder for regulating the amount of air passing through said first passage of the cylinder, said body portion having an outlet passage communicating with said mixing chamber, said valve having a rod depending through said first passage of the cylinder and through a'hole in the lower end of said cylinder; and means detacliably secured to thelower end of said rod and of larger cross section than said latter hole whereby suction established in said outlet passage can lift the valve from its seat a distance prescribed by the normal distance of said means on the rod from the lower portion of said cylinder; substantially as described.

3. A carbureter including a body portion having a boreextending inwardly fromone end and stopping short of the other end; a cylinder adapted to fit within said bore and having a valve seat spaced from the inner end of the bore to provide a mixing chamber, said body portion including an inlet gas passage communicatin with said bore below said valve seat, said cylinder having perforations leading to said valve seat and communicating with said gas inlet passage, said cylinder having an inner passage leading from said valve seat to a position below said first end of the hollow body portion; a valve for engagement with said valve seat, said cylinder having holes extending laterally from said latter passage, said, cylinder having a flange spaced below said first end of the body portion; a collar rotatably surrounding sald cylinder and interposed between said flange and said first end of the body portion, said 001- lar having holes adapted to register with said holes in the cylinder for regulating the amount of air passing throu h said first passage of the cylinder, said body portion having an outlet passage communicating with said mixing chamber; and a set screw in said body portion engaging said cylinder for holding the latter in place whereby when the set screw is removed the cylinder, collar and valve can be removed as a whole from said bore; substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN SCHOLTZ.

Witnesses STANLEY A. BROZA, GUSTAVE SUNDAY. 

